stringredistemplate.opsforlist
时间: 2023-04-26 21:06:27 浏览: 61
stringredistemplate.opsforlist是RedisTemplate的一个方法,用于获取操作Redis中List类型数据的操作类。可以通过该类进行List类型数据的添加、删除、修改、查询等操作。
相关问题
stringRedisTemplate.opsForList()
The method `opsForList()` is used to retrieve a Redis list-specific operations object that can be used to perform various list operations on Redis.
Example usage:
```
ListOperations<String, String> listOps = stringRedisTemplate.opsForList();
listOps.leftPush("mylist", "value1");
listOps.rightPush("mylist", "value2");
List<String> values = listOps.range("mylist", 0, -1);
```
In the above example, we first retrieve the `ListOperations` object using `opsForList()`, and then use it to perform operations such as `leftPush()`, `rightPush()`, and `range()` on a Redis list named "mylist". The `leftPush()` and `rightPush()` methods push values to the left and right ends of the list respectively, and the `range()` method retrieves all values in the list.
Note that the `ListOperations` object returned by `opsForList()` is parameterized with the key and value types of the Redis list. In the example above, we use `String` as both the key and value types.
List<String> recordJsonList = stringRedisTemplate.opsForList().range(listKey, 0, -1);的mock怎么写
你可以使用Mockito框架来模拟`stringRedisTemplate`对象的行为,从而测试`recordJsonList`的生成情况。具体mock的代码如下:
```java
// 创建一个 mock 的 StringRedisTemplate 对象
StringRedisTemplate stringRedisTemplateMock = mock(StringRedisTemplate.class);
// 创建一个 List<String> 类型的 expectedList
List<String> expectedList = Arrays.asList("value1", "value2", "value3");
// 设置 mock 对象的行为
when(stringRedisTemplateMock.opsForList().range(eq("listKey"), eq(0L), eq(-1L)))
.thenReturn(expectedList);
// 调用被测试的方法
List<String> recordJsonList = stringRedisTemplateMock.opsForList().range("listKey", 0, -1);
// 验证结果是否正确
assertEquals(expectedList, recordJsonList);
```
这个 mock 示例中使用了 `mock` 和 `when.thenReturn` 两个 Mockito API,`mock` 方法用于创建一个 mock 对象,`when.thenReturn` 方法用于设置 mock 对象的行为。在本例中,我们设置了 `stringRedisTemplateMock` 对象的 `opsForList().range` 方法在接收到指定的参数时,返回一个已经预设好的 List 对象 `expectedList`。最后,我们验证生成的 `recordJsonList` 是否与预期的 `expectedList` 相同。